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《Electrical Automation》 2010-04
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Characteristics Analysis and Control Strategy of Inverter Combined with Cascading and Paralleling

(Zhejiang University,Hangzhou Zhejiang 310027,China) Lin Wangqing Zhao Rongxiang  
In order to improve the quality and capacity of the voltage waveform exported by inverter,this paper first proposes inverting control system combined with cascading and paralleling.Compare with the cascaded inverter or parallel inverter,this system incorporates the advantages of these two systems.In this paper,the voltage and current double closed-loop control strategy and phase shifted technology are proposed.When the systems is in different modulations,simulation results show that the system can output very low THD(total harmonic distortion),high quality waveforms.Besides,the circulating current can be effectively damped.
【CateGory Index】: TM464
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